Grow Stone - Why No Stripe in Suspicious cave 3F?

I have a quest to hunt 3 Stripes. Based the Reward Info (see screen shot below), Stripes should show up in Suspicious cave 3F. But so far, after three days of farming, I only seen Giant stone and Mazra. Does Stripe actually show up in this field?

No TrackBacks yet. TrackBack can be used to link this thread to your weblog, or link your weblog to this thread. In addition, TrackBack can be used as a form of remote commenting. Rather than posting the comment directly on this thread, you can posts it on your own weblog. Then have your weblog sends a TrackBack ping to the TrackBack URL, so that your post would show up here.